Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/86840
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Campo DC | Valor | Idioma |
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dc.contributor.author | Arieira, Ana Filipa Amorim | por |
dc.contributor.author | Madeira, Sara Cristina Soares | por |
dc.contributor.author | Rodrigues, Flávio Gabriel Silva | por |
dc.contributor.author | Silva, Filipe Samuel | por |
dc.date.accessioned | 2023-10-12T09:46:55Z | - |
dc.date.available | 2023-10-12T09:46:55Z | - |
dc.date.issued | 2023-03-17 | - |
dc.identifier.citation | Arieira, A.; Madeira, S.; Rodrigues, F.; Silva, F. Tribological Behavior of TiO2 PEEK Composite and Stainless Steel for Pediatric Crowns. Materials 2023, 16, 2420. https://doi.org/10.3390/ma16062420 | por |
dc.identifier.uri | https://hdl.handle.net/1822/86840 | - |
dc.description.abstract | Dental decay still presents a major health problem among children. Its treatment usually requires the use of stainless steel crowns. This study compares the wear behavior of 316 L stainless steel and polyetheretherketone (PEEK) composite under identical test conditions. The wear tests were conducted in a reciprocating ball-on-plate tribometer (Plint TE67/R) using alumina balls as a counterface and artificial saliva as a lubricant at 37 °C to faithfully mimic oral conditions. The coefficient of friction (COF) and specific wear rate (<i>k</i>) values were determined and SEM/EDS examinations were performed to identify the predominant wear mechanisms. Results showed that PEEK exhibited a significantly lower coefficient of friction (COF = 0.094 ± 0.004) and thus lower wear volume (Δ<i>V</i> = 0.0078 ± 0.0125 mm<sup>3</sup>) and higher wear resistance, with an average value of specific wear rate of <i>k</i> = 9.07 × 10<sup>−6</sup> mm<sup>3</sup>N<sup>−1</sup>m<sup>−1</sup> when compared to stainless steel (COF = 0.32 ± 0.03, Δ<i>V</i> = 0.0125 ± 0.0029 mm<sup>3</sup>, <i>k</i> = 1.45 × 10<sup>−5</sup> mm<sup>3</sup>N<sup>−1</sup>m<sup>−1</sup>). PEEK was revealed to be a potential material for use in pediatric crowns due to its high wear resistance while overcoming the disadvantages associated with steel at both an aesthetic and biological level. | por |
dc.description.sponsorship | This research was funded by FCT (Fundação para a Ciência e a Tecnologia) through projects UIDB/04436/2020, UIDP/04436/2020, and UIDB/00285/2020. | por |
dc.language.iso | eng | por |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04436%2F2020/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04436%2F2020/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Coefficient of friction | por |
dc.subject | Wear rate | por |
dc.subject | Stainless steel | por |
dc.subject | Polyetheretherketone (PEEK) | por |
dc.title | Tribological behavior of TiO2 PEEK composite and stainless steel for pediatric crowns | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/1996-1944/16/6/2420 | por |
oaire.citationStartPage | 1 | por |
oaire.citationEndPage | 14 | por |
oaire.citationIssue | 6 | por |
oaire.citationVolume | 16 | por |
dc.date.updated | 2023-03-28T12:57:41Z | - |
dc.identifier.eissn | 1996-1944 | - |
dc.identifier.doi | 10.3390/ma16062420 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Materials | por |
oaire.version | VoR | por |
dc.identifier.articlenumber | 2420 | por |
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Ficheiro | Descrição | Tamanho | Formato | |
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materials-16-02420.pdf | 6,56 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons